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astringent |
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astringent (əstrĭn`jənt), substance that shrinks body tissues. Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to check discharge of serum or mucous secretions in sore throat, hemorrhage, diarrhea, or peptic ulcer. Externally applied astringents, which cause mild coagulation of skin proteins, dry, harden, and protect the skin. Mildly astringent solutions are used in the relief of such minor skin irritations as those resulting from superficial cuts, allergies, insect bites, or athlete's foot. Astringent preparations include silver nitrate, zinc oxide, calamine lotion, tincture of benzoin, and vegetable substances such as tannic and gallic acids, catechu, and oak bark. Some metal salts and acids have also been used as astringents. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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combines the crystal clarity of PET with protection against uv degradation of delicate dyes, vitamins, and aroma compounds in shampoos, body washes, and facial astringents. A monkey will seek out astringents and anti-microbials when necessary. During the first half of the 20th century, various non-specific methods--including the use of astringents and antiseptics--were the primary forms of treatment for otorrhea secondary to either acute otitis media, acute otitis externa, or chronic suppurative otitis media (CSOM). |
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